Ville



m e h s u e h S 2 H L L I, V E D N A M l W u. .w mv

LOCK.

Patent-ed Nov. 24,1885.

I JV VEJV' TOR Attorney WITWESSES N. PETERS. PhuwLilhamphnn washingmn, D. C.

2 sheets-sheen '2.

(Model.)

W. J. MANDEVILLE.

LOCK.

Patented Nov. 24, 1885.

INT/ENIGE Attorney N. PETERS. PnowLnhugmpher. wnshingmn. D4 C.

l] tra PATnNr einen.

VILBUR J. MANDEVILLE, OF ROCHESTER, NEW YORK.

` LOCK.

SPECEFICATION forming part of Letters Patent No. 331,073, dated November 214.-, 1885.

Application filed December 26, 1884. Serial No. 151,150. (Model.)

.To @ZZ whom it may concern:

Be it known that I, WILBUR J. MANDE- vILLE, of Rochester, New York, have invented certain Improvements in Locks, of which the following is a specification, reference being had to the accompanying drawings.

My invention relates to certain improvements inlocks, which improvements are fully described in the following specilication, and the novel features thereof specified in the claims hereunto annexed.

My improvements in locks are represented in the accompanying drawings, in which Figure 1 is a side elevation of the case, showing the sliding bolt in position therein. Fig. 2 is a partial side elevation of the case, showing the division-plate and the revolving disk.

Fig. 3 is a partial side elevation showing the position of the disk when the bolt is deadlocked. Fig. 4 is a horizontal section on the line x Fig. 2. Fig. 5 represents the revolving disk as seen from the inside, showing the cam or eccentric thereon. Fig. 6 represents the slotted keystud in plan and elevation. Fig. 7 represents the key-stud as seen from the inside end. Fig. 8 is a partial side elevation of the division-plate, representing also the tumblers. Fig. 9 is a partial side elevation representing by dotted lines the movement of the tuinblers when the key is turned. Fig. 10 is a side elevation of the lock, the cover being removed. Fig. 11 is a partial side elevation of the lock, showing the position of the tumblers and disk when the bolt is deadlocked. Fig. 12 is a vertical section of the lock on the line y y, Fig. 10. Fig. 13 represents the key designed to be employed in my improved lock. Fig. 14. represents an eXterior view of a portion of the cover, showing the slotted key-stud. Fig. 15 represents in full lines one of the tumblers detached, indieating also in dotted lines the outline of a tumbler of different shape.

In the accompanying drawings, A represents the case of my improved lock; B, the sliding bolt; C, the division-plate; D, the revolving disk; E, the tumblers; F, the slotted keystud, and G the cover. The case is provided with the ianges a a, a, and the front b may be formed in one piece with the case, or attached thereto by means of lugs and screws,

as Vat c c, Figs. 1 and 2. The cover G is attached to the open side of the casein any convenient manner, thereby forming an inclosnre within which the working parts of the lock are placed. The bolt Bis arranged to slide backward and forward within the case, as indicated by the full and dotted lines in Fig. 1, friction-rollers being applied to` its sides at d d', Fig. 1, in order to secure ease of motion and relieve the friction caused by the action ofthe knob-lever I on the arm H, extending sidewise from the bolt.

The knob-lever is of the ordinary construction, being arranged to be turned by a spindle provided with knobs on one or both sides of the door and passing through the lock-case. The arm H may be formed in one piece with the bolt, or it maybe attached thereto in any suitable manner. The anti-friction rollers d d are arranged to revolve on studs e c, which may be either cast on the case and iinished or inserted therein.

As indicated in the drawings, the roller d is located near the outer edge of the case and on the same side of the bolt with the arm H, while the roller d is placed on the side of the bolt away from the arm, and nearly opposite it, so that the friction is relieved and the bolt slides easily, notwithstanding the action of the knob -lever on the projecting arm H. The bolt is constantly pressed outward by the spring J, which may be applied in any preferred manner. A swivel or divided spindle may be used to operate the knob lever or levers, and any usual or preferred means may be employed for locking the knob-lever connected with the outside knob. A catch, K, may be employed to fasten the bolt, when desired, being arranged to engage with a notch in the bolt, as indicated by the dotted lines in Fig. 1, and provided with a spring, L,which holds the catch in either position. Within the case, and between the bolt and the tum blers, is placed the division-plate C, the function of which is to sustain the revolving disk D, so that any force or strain applied to the outer end of the bolt is prevented from reaching the tumblers. The divisionplate G is secured to the case by screws f, and it may be attached by means of the screws which are used to fasten on the cover,which pass through IOO 2, thereby unlocking the lock.

lugson the inner side of the cover long enough to come in contact with the division-plate. The division-plate is provided with a circular opening,within Which rotates the disk D, carrying on its side next the bolt the cam or eccentric g, by the action of which the bolt is moved and secured in place when dead-locked, and carrying on the other side the pin or pins h z', which engage with the pivoted tumblers E, operated by thekey in the slot l inthe keystud F. A recess, N, is formed in the boltB, into which the cam g projects,vso that when the disk D is turned toward the right hand in Fig. 2, thevcam striking against the edge j, Figs. 1 and 4, of the recess throws the bolt to the right hand while moving fromg to g', Fig. On turning the disk D to the left hand the cam will be moved to the position indicated by the dotted lines g, Fig. 8, Without moving the bolt, when its outer extremity will come in contact with the edge 7c, Fig. 1, of the recess N in the bolt and prevent the bolt from being forced inward. In this position the bolt is dead-locked, and cannot possibly be forced inward by any force insufficient to crush the lparts vor entirely destroy the lock.

It remains to describe the tumblers and mechanism by which a suitable key is allowed to turn the disk in either direction, as may be desired. On the side of the disk away from the cam and bolt are located the pins hand i, which may be either formed integrally with the disk or inserted therein. As the disk rotates, the pins h i move in the grooves o o in the tumblers E. The disk is turned by the inner end of the key, which, when inserted in the slot in the key-stud, projects int-o the slot in the disk, although the arrangement may be such that the disk is turned by the key-stud, the inner end, n, Figs. 6 and 7, thereof being squared or otherwise shaped, so that when tted into a hole, r, of a corresponding shape in the disk,the stud and disk will turn together. This arrangement also serves to steady the inner end of the key-stud, the outer end of which is formed by a flange, p, Figs. 4 and 6, tted to an opening in the cover. The ange is recessed, so that the key-stud is held in place in the lock by the cover. rlhe tumblers E are pivoted on a pin, s, inserted in the division-plate, so that they can swing upward, as indicated by the dotted lines in Fig. 9, whether the key be turned to the right or left hand. The key, being inserted in the slot of the keystud and turnedin either direction, tends to turn the disk and move the pin h, Figs. 8, 9, and 10, in the slots o o in the tumblers; but the pin cannot move either way in these slots unless the tumblers be swung up-v Ward by the key acting on the edgesvv, Figs. 8, 9, and 15, of the opening in the tumblers through which the key passes.

Asrepresented in the drawings, Fig. 15, the edges v c are of different shapes on the dierent tumblers, each corresponding to a notch dimension that the tumblers will be raised' just enough to permit the pin in the disk to pass through the slots in the tumblers. No key other than the one designed for the lock in question can turnthe disk and slide the bolt, as the tumblers prevent'the movement of the pin on the disk unless they are raised the proper distance by the turning of the key. The construction admits of great accuracy in the fitting of the key, and the slot o is provided with the recesses u u', Fig. 8, into which the pins h ori will enter and be' held in case the key or anyone ofthe notchesinitshould bevery slightly too long or too short. If the notch be too long, the tumblers will be raised too high, and the pin will engage in the recess u. If, on the contrary, the notch be too short, the pin will be caught in the recess u, because the correspondingtumblers will not be moved sufficiently far upward. NVhen the disk is turned to the left hand, as represented in Figs. 3,' 9, and 11, into the position in which the bolt is dead-locked, the pin i occupies the same position andperforms the same functions as already described with referencel to the pin h when it is desired to turn the disk to the right-that is, it will engage with one or other of thev recesses a u', and prevent the IOO turning of the disk unless the key is of exactly the proper shape to give the proper movement to the tumblers. l

As indicated in Fig. 15, the key may be withdrawn from the lock When the disk is in either of the two positions represented by Figs. 2 and 3-that is, when the lock is used as an ordinary night-latch or is dead-locked. Any preferred number of tumblers may be used in connection with my improved lock. Each tumbler is provided with a spring, w, bearing against a pin, x, Figs. 8 and 9, to hold them down on the pins. One or more of the tumblers may be provided with a recess, z, Fig. 8, which prevents the locking of the door without the proper key. The lower part, y, of the tumblers may be dispensed with, although I prefer to use it on account of the additional strength thereby imparted to them.

Vhile I have herein shown my improvements as applied to an ordinary mortise doorlock,it is obvious that they can be used in connection with locks of other kinds-as, for instance, rim-locks, drawer-locks, and, in fact, almost 'any form of lock where great security is desired. It is obvious also that my improvements may be used without the deadlock arrangement 'as herein described.

My improved lock possesses the advantages over any-other form of lock at-present in use of greater simplicity in construction, security from breakage on account of the use of the di- IIO vision-plate, freedom fromfriction and accidental derangement,and it is,moreover, cheaper to construct.

The advantages possessed by my improved lock will be readily understood from a con sideration of the nature of the inventions herein described. The divisionplate protects the tumblers from being injured by supporting the disk in place against any force applied to the bolt, or by the insertion of a lever into the key-stud to twist it around. It also holds the sliding bolt securely in place in the lockcasing. The disk serves to adapt the lock to be used either as a nightllatch, or, by turning it to the left hand in the drawings, to be used as a dead-lock, in which case the bolt is sustained against any power tending to force it inward by the whole strength ofthe disk and plate.

My improved lock may also, in consequence of the arrangement of the arm H and the knoblever, be used as an ordinary latch without moving the tuniblers, and as a night-latch and a dead-lock, being very much more simple and cheaper in construction than any other lock in which all the same functions are performed.

I clainil. The combination, with the bolt B, provided with the recess N, of the revolving disk D, having cani g and means for turning the disk in either direction,whereby when turned in one direction it may move said bolt, and when turned in the other direction it rnay lock the same, substantially as described.

2. The combination, with a suitable lookcasing, of the sliding bolt B, provided with offset-arm H, knoblever I, and the anti-friction rollers d and d, arranged to operate substantially as described.

3. rlhe combination, with a suitable lockcasing, oi' the sliding bolt B and the divisionplate C, provided with an opening sustaining the disk D, having cam g, projecting into a recess in the bolt and provided on its outer side with suitable means for turning the disk, substantially as described.

4. The combination, with the sliding bolt B, division-plate C, rot-ating disk D, provided with cani g, pin It, and suitable tum- 5c blers, E, located on the side of the disk opposite the bolt, substantially as described.

5. The combination, with the sliding bolt B, division plate C, rotating disk D, provided with cam g, and pins h ,of two or more tuinblers located on the side of the disk opposite the bolt, and arranged to permit the turning of the key in opposite directions, substantially as and for the purposes specified.

6. The combination, with the sliding bolt B, of the division-plate G, disk D, provided with cam g, pin h, and slot n?, the slotted tuniblers E, and the slotted key-stud F, substantially as described.

VILBUR J. MANDEVILLE.

Vitnesses:

Gno. B. SELDEN, L. A. KANE. 

